The ZKTeco DL30B/DL30DB Smart Lock is a high-tech door lock that lets you open the door in three different smart ways—using Bluetooth on your phone, a secret password, or a special card. It can remember up to 100 different passwords and 100 card users, which makes it great for families, offices, or shared living spaces. You’ll never need to carry keys again or worry about losing them!
This lock uses a German standard mortise, which is a strong metal part inside the door with one latch and one deadbolt. That means the door stays extra secure when locked. The outside of the lock is made of zinc alloy, a tough metal that helps protect against damage and break-ins. It even has a cool design where the handle stays loose when locked, making it harder for someone to force it open.
One neat safety trick it uses is a random password feature. That means if someone is watching you enter your code, they can’t easily guess it, because you can add fake numbers before or after the real password. And if the battery is low or someone tries to break in, the lock will make a warning sound to let you know.
To make it easier to use, it talks to you with a voice guide—and if you want peace and quiet, you can turn the volume down or even put it in mute mode. If the battery ever runs out, you can still open the door by using a 9V battery on the outside for emergency power.
Overall, the ZKTeco DL30B/DL30DB is a smart door lock made for everyday life. Whether you’re at home or running a business, it’s easy to set up, easy to use, and helps keep your place safe without the hassle of keys.
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